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TO ALI WHOM IT MAY ACONCERR:l Be it `known that I, LEWIS F. HAKE, ofSalem, Colulnbienev ceunty',S tate of Obiev have invented a. new -anduseful vImprovement in Stores; endl' do hereby deplcrethat the followingis e-i'ull, clear kend exact description thereof, reference being.had'to the accompanying draw-ings, malging'lepnrt of' thisspecification, in which- Figure 1 is' n top view of o stove having myinvention *op* ed toit; 4 Figure 2 is a. longitndinolsectienthrough theetoyev tekenen e vertical plane. Figure 3 is st transdversc sectionteken in n :v'erticnl plone indicntedred line :a: fr, iig. 2. Fig're 4is o perspective View of the `connected portion' of the ie-"box. Similnrletters of reference indicate corresponding p'srts'inV the severalfigures..-

Tho object of .tlis'inventpn is to obtxiine. more perfect combustion ofthe-'ges and smokeA arising fromlthe open' {ire-boxes or grates ofnarming'lzmd cooking stoves, ranges, and furnncesof everydescription-,by applyingfo. contracted rapto the Aopen ire-box,Which-Will concentrate andretein the'ges and smoke'dirfec'tly osier thefire nt the hottest point ofthe stove a snicient length of time toeeet-their cmbustion,as will behereina-fter described. A

Io enzblc others skilled in` the artto nndrstzmd my inventiqnfi, I,will'de'scri'he its construction end operation. I v i In theaccompnnying drawings I lieve represented my inyention applied toivonoform' of stove havisfgen open tire-box, blut do not desire to confinethe invention to thisform of stove, as it is appli-cable toell'o'pen'iire-V boxes wherever arranged.

A represents the outer wells 'of :t cooking stove, and-B is tbefoventhereof, which isformed'by-ine'ens of the plates a a, .so as to leave a.chamber, C, at the front, a. uefchomber, C', von top,v tvro lluesb b atthe' back, and two lues b-'et the bottom, ne shown in figs. 2 and 3. Theproducts of combustion and heated-nir escaping from tl1c 'openfire-chamber'fl, pass o ver the oven B .down throngh'the -iiu'e forwardVto'"tho front of Vthe stove: and thence back again through tbe-flue' b,and finally escepe throngh the 4smokel pipe or exit flue c,'asiindicoted' the course of the arrows in fig'. 2. I have merelydescribed the ues 6 b 'forlthe pnrposeof illustrating 11011,

4my invention is applied to :1 stove, buhsuch lnes constitute no part ofthe 'invention whicbI claim. The Af orzxz-ef' the stove andthenrrengement ofthe stove may be s uch :is show-mor ofenytherfsuita-ble knownconstrnetion.`y

'Within the tire-chamber C I applylo. grated bottom box, D, the frontand resrsides of which flore upward and `outward so esto leave spacesfor the passage of before arid behind the box D, up\vnrd :md through'performvv tions which are made. through this box, as shown et e'e, fig.2. Cold nir is allowed to ente; vthe chamber() at suitable points, so asto supply oxygen' to the fire in the box D, nnd to comminglejwiththeprodncts of 'c ombustion arising in this box Afor the purpose ofeffecting vthe combustion of the smokev and gas. Theire-boxD in`horizontal Lseetion'js rectangular, and upon this box'jie supportedpyramidel czip,l G, which'has on op'enmg of consideravble'less area.than the arca. of the -refbox, es shown in figs. 2l ond 3. v Theinclined ends and sidesof I vthis cup G tit snugly doyn upon the re.box,and are perforated at i e' for allowing air to enter and commingle' withthe gas-and smoke .therein. This cop G is vso applied toitsfire-lion4thait it con berenioved therefrom et plesuroand readily replaced. It isprovided with o. hinged doorfg, which admits o the vintroduction of',coal

into the lire-box' D when. the stove'door E is opened. I By providinglsaid ce'p'G, virith nd'oor, y, the upper endl of thecp can be raised.to a point which is yery, near thelopplete ofv tlnvstove,4 xrithoitlinterfering' with the 'supply of foelthrou-grhtbedoor Eg' ,Asthekhigvbly heated gesund smoke rise from-the burning-'coals in thetirev Jox'D they linipinge np'on'the inclined sides of the cap G, anderedeilected'downword; this reta-rds the escape if the gas and smoke fromthe cap, and allows liighlyiheetedA oir tocomminglc withthemand thusincrease the heat to suoli an Vextent that they will in agreat meneursbe consumed in the contrnctedchainber formed by the pyremidel cap; v l

'Having th'ns described my invention, nhnt I claim ns new, and desire.to secure by Letters Potent, isi-A u" L Providing for contracting theexit passage for' the products'ef combustion from an open fire-box bymeans of' o pyraimidal-or conicnl'cap; substantially in the mnnnerendfor' the purpose specified. i

Y 2. The application o fn door or its equivalent to 'the c np G,snb'stentiellfy'as described.

i 3. Perforajting the cap G when applied to on openrejbox, substantiallyes described.

l LEWIS F. HAKE; ,'Wimesses: 3. H. Ginmeuns,

Kommt B. GABMGUES.

